(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]RU[NZ]SZ[19]KM[7.00]TM[1800]OT[5x30 byo-yomi]DT[2013-06-02]PC[The KGS Go Server at http://www.gokgs.com/];B[dp];W[pd];B[dc];W[pq];B[nc];W[pf];B[jd];W[cf];B[de];W[bd];B[ch];W[df];B[ce];W[be];B[cc];W[bg];B[ef];W[dh];B[eg](;W[ci]C[white gain some points but lost a lot outside (not joseki)];B[po]LB[eh:A]C[but now, black has this sente move and his it's interesting because of black is developping the top];W[qm];B[on];W[np];B[qq];W[qp]C[this is joseki too (but mucj better if white has stones on the left bottom)];B[pp];W[qo];B[oq];W[pr](;B[or]C[black mistake];W[qr];B[rq];W[rr];B[qn]C[bad exchange for black];W[rn];B[pn];W[rp];B[op];W[jq];B[hq];W[mq]C[now it's white who is attacking black])(;B[nq](;W[rq]C[white has to fend the corner];B[mp]C[the shape is much better than the game])(;W[qr];B[rq](;W[rr];B[mp];W[]C[later];B[qn];W[rn];B[pm]C[Ko];W[rp];B[ql]C[if black has enough Ko threats, he can enclose white])(;W[rp];B[qn];W[rn];B[pm];W[ql];B[sp];W[ro];B[rr];W[rs];B[sr]C[another Ko]))))(;W[di]C[this is joseki];B[ck]C[black sente move];W[ci]))